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All results from a given calculation for C3H4N2 (1H-Pyrazole)

using model chemistry: TPSSh/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/cc-pVTZ
 hartrees
Energy at 0K-226.296123
Energy at 298.15K-226.302124
HF Energy-226.296123
Nuclear repulsion energy163.271329
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at TPSSh/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3650 3534 72.06      
2 A' 3265 3162 1.47      
3 A' 3246 3143 2.74      
4 A' 3231 3129 4.35      
5 A' 1563 1513 5.46      
6 A' 1478 1431 5.93      
7 A' 1427 1381 11.69      
8 A' 1378 1335 4.28      
9 A' 1275 1235 2.18      
10 A' 1176 1138 0.12      
11 A' 1144 1108 17.19      
12 A' 1059 1026 7.56      
13 A' 1045 1012 35.66      
14 A' 931 901 4.59      
15 A' 914 885 10.84      
16 A" 895 867 5.03      
17 A" 844 817 11.04      
18 A" 759 735 86.36      
19 A" 691 669 21.13      
20 A" 636 616 0.22      
21 A" 530 513 46.59      

Unscaled Zero Point Vibrational Energy (zpe) 15568.5 cm-1
Scaled (by 0.9683) Zero Point Vibrational Energy (zpe) 15074.9 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at TPSSh/cc-pVTZ
ABC
0.32289 0.31543 0.15956

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.101 0.726 0.000
C2 1.109 0.305 0.000
H3 1.262 -1.894 0.000
C4 0.665 -0.999 0.000
H5 -1.480 -1.679 0.000
C6 -0.747 -0.887 0.000
N7 -1.142 0.378 0.000
H8 -0.047 2.090 0.000
N9 0.000 1.085 0.000

Atom - Atom Distances (Å)
  H1 C2 H3 C4 H5 C6 N7 H8 N9
H11.07822.75152.24494.31413.27343.26202.54452.1316
C21.07822.20451.37723.26172.20562.25212.12631.3556
H32.75152.20451.07682.75092.24783.30814.19343.2355
C42.24491.37721.07682.25001.41592.27123.16912.1868
H54.31413.26172.75092.25001.07942.08454.03183.1353
C63.27342.20562.24781.41591.07941.32493.05752.1085
N73.26202.25213.30812.27122.08451.32492.03181.3432
H82.54452.12634.19343.16914.03183.05752.03181.0058
N92.13161.35563.23552.18683.13532.10851.34321.0058

picture of 1H-Pyrazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C4 131.829 H1 C2 N9 121.871
C2 C4 H3 127.449 C2 C4 C6 104.296
C2 N9 N7 113.117 C2 N9 H8 127.818
H3 C4 C6 128.255 C4 C2 N9 106.300
C4 C6 H5 128.252 C4 C6 N7 111.874
H5 C6 N7 119.874 C6 N7 N9 104.414
N7 N9 H8 119.065
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.097      
2 C -0.062      
3 H 0.099      
4 C -0.180      
5 H 0.094      
6 C -0.055      
7 N -0.191      
8 H 0.164      
9 N 0.034      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.052 0.902 0.000 2.241
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.667 0.256 0.000
y 0.256 7.769 0.000
z 0.000 0.000 3.950


<r2> (average value of r2) Å2
<r2> 79.884
(<r2>)1/2 8.938